815 results about "Open cell" patented technology

Ground-engaging components for articles of footwear include an outer perimeter boundary rim that at least partially defines an outer perimeter of the ground-engaging component, wherein the outer perimeter boundary rim defines an upper-facing surface and an opposite ground-facing surface. The outer perimeter boundary rim defines an open space at least at a forefoot support area of the ground-engaging component. A matrix structure extends from the outer perimeter boundary rim (e.g., the ground-facing surface and / or the upper-facing surface) and across the open space at least at the forefoot support area to define an open cellular construction with plural open cells across the open space at least at the forefoot support area. The matrix structure defines one or more sets of adjacent open cells, the set(s) including at least three open cells that are substantially aligned in the forefoot support area along a line extending in a forward medial-to-rear lateral direction.

The invention relates to the technical field of chip embedded module packaging, in particular to a blind hole processing method and a substrate. An embedded chip substrate is prepared, a chip is embedded in the embedded chip substrate, and the chip is covered with an insulating layer; determining a hole opening position on the insulating layer, wherein the hole opening position corresponds to the embedding position of the chip on the chip embedding substrate; laser ablation is conducted on the hole opening position through ultraviolet laser according to preset laser parameters, so that an initial blind hole is machined in the hole opening position; and performing residue removal processing on the initial blind hole through plasma equipment to obtain a target blind hole. Therefore, the initial blind hole is machined in the hole opening position through the ultraviolet laser, molecular bonds can be directly destroyed, cold ablation is achieved and thermal damage is reduced on the basis of the characteristic that photon energy of the ultraviolet laser is high, meanwhile, the target blind hole with the smooth hole wall can be obtained by conducting residue removing treatment on the initial blind hole through plasma equipment, and the hole opening precision is improved. Compared with the prior art, high-precision and high-quality machining of the blind hole is achieved.

The invention relates to a solid-state battery positive electrode material layer and a solid-state battery, belongs to the technical field of solid-state batteries, and is used for solving at least one of the problems that an existing solid-state battery is easy to crack, poor in contact and large in resistance, and a solid-state electrolyte battery prepared by a physical vapor deposition method is thin in electrode thickness, low in capacity and the like. A plurality of holes are formed in the positive electrode material layer, the diameter of each hole is 0.1-10 [mu] m, the opening area of each hole in the unit area of the positive electrode material layer accounts for 20-60% of the total area, and each hole is of a through hole structure. The positive electrode material layer of the solid-state battery is provided with a plurality of holes with through hole structures, the solid electrolyte is embedded into the holes, the holes are filled with the solid electrolyte, the solid electrolyte covers the positive electrode material layer, and the holes have specific diameters and opening areas, so that the ionic conductivity is improved, and the service life of the solid-state battery is prolonged. The thickness of the prepared positive electrode material layer can be designed as required.

The present invention discloses a wireless ultrasonic measurement system and a construction method thereof, wherein the measurement system includes a sensing module and a detection module; the sensing module includes a piezoelectric layer on the surface of the detection object, a first lead-out electrode structure, a first grounding electrode structure, a first insulating plate, and a sensing coil; the first insulating plate is provided with a first opening; the first lead-out electrode structure includes a first lead-out electrode on the top of the piezoelectric layer and a second lead-out electrode in the first opening; the first grounding electrode structure includes a first grounding electrode and a second grounding electrode; the second lead-out electrode and the second grounding electrode are respectively connected to the first lead-out electrode and the first grounding electrode; the sensing coil is provided at the top of the first insulating plate. The detection system of the present invention uses an insulating plate to isolate the sensing coil away from the surface of the detection object, which is conducive to the sensing coil generating a non-zero induced voltage U ind , thereby enhancing the signal of the receiving coil, and realizing contactless ultrasonic signal reception with a receiving distance of up to 20mm.

The utility model relates to the technical field of batteries, in particular to a battery cell cover plate and a battery cell. The battery cell cover plate comprises a pole and a cover plate, wherein the pole comprises a pole body part and a plate body part, and the pole body part penetrates through a mounting hole of a cover plate main body; the terminal post is riveted with the riveting piece, so that the circumferential side wall of part of the post body part expands outwards to form a material expansion part; the section, perpendicular to the axis of the pole, of the pole forms a strip-shaped structure, K is equal to (1 / 3-2 / 3) L, and M is equal to (1 / 3-2 / 3) W. The section, perpendicular to the axis of the pole, of the pole is of the strip-shaped structure, so that compared with a traditional cylindrical pole structure, the pole has the advantages that the overflowing capacity is improved, and the size proportion relation between the pole body part and the plate body part of the pole is defined as K = (1 / 3-2 / 3) L and M = (1 / 3-2 / 3) W, so that the overflowing capacity of the pole is effectively improved; and the structural strength of the cover plate main body is not influenced by the opening size of the mounting hole, so that the structural strength of the battery cell cover plate meets the battery cell use requirement.

The present invention relates to the field of semiconductors. Provided are a semiconductor structure and a preparation method therefor, and an electronic device, which are used for simplifying semiconductor structures and preparation methods therefor. The preparation method for the semiconductor structure comprises: forming 2n stacked material layer groups (2101) on a first substrate (100), wherein each stacked material layer group (2101) comprises a first material film layer (2111) and a second material film layer (2121); forming n first openings (10) with different depths, and among the first openings (10) from shallow to deep, forming first isolation layers (310) at ends of the first (i-1) first material film layers (2111) penetrated by the ith first opening (10); forming a second opening (20) below each first opening (10), and forming second isolation layers (320) at ends of the first (n-1) first material film layers (2111) penetrated by each second opening (20); and below each second opening (20), forming a third opening (30) extending to the first substrate (100), and forming third isolation layers (330) at ends of the first material film layers (2111) penetrated by each third opening (30).

The invention discloses a BIM (Building Information Modeling)-based suspended ceiling advanced accurate positioning and trepanning construction method, which comprises the following steps of: S1, establishing a construction model of each specialty in a suspended ceiling, performing collision inspection, and adjusting the construction model; s2, establishing a three-dimensional model including suspenders, keels and the like by utilizing BIM software; s3, comprehensive collision inspection is carried out, and the ceiling structure is prevented from conflicting with other professional equipment; s4, generating a construction drawing and organizing field implementation according to comprehensive suspended ceiling deepening typesetting; s5, a trepanning positioning plate is manufactured, and the trepanning positioning plate is used for accurately positioning the trepanning point position of the veneer plate on site; s6, paying off the trepanning point, confirming a central point and implementing accurate trepanning; and S7, after trepanning is completed, point location installation is conducted on facility equipment needing to be installed in advance. Advanced coordination of the keel in the suspended ceiling and various equipment point positions can be achieved, precise positioning of suspended ceiling trepanning is achieved, disassembly and rework are reduced, and the construction precision and efficiency are improved.

The invention provides an automatic disassembling and recycling system and method for waste electric energy meters, the system comprises a disassembling line and a PCB panel and further comprises a junction box on the PCB panel, the disassembling line is provided with a disassembling device, the disassembling device comprises a first processing platform and a second processing platform which are arranged on the disassembling line, and the first processing platform and the second processing platform are arranged on the PCB panel. The top end of the first processing platform and the top end of the second processing platform are each provided with an adjusting rail and a machining platform, and each machining platform is provided with a lifting assembly, a positioning assembly, a conversion assembly, a collection assembly, a transfer assembly, an air inlet assembly, an air outlet assembly, a limiting assembly and an output assembly. And the discharged electric energy is collected and used for doing work, and the collected electric energy is used for tapping the capacitor and collecting electrolyte, so that the safety on a disassembly line is greatly improved, and meanwhile, pollution is reduced.

The invention is suitable for the technical field of solar cells, and provides a cell module and a photovoltaic system, and the cell module comprises a back contact cell which comprises a first polarity grid line and a second polarity grid line; the plurality of first welding strips and the plurality of second welding strips are respectively connected with the first polarity grid line and the second polarity grid line; the insulating strip is arranged on the sides, deviating from the back contact battery, of the first welding strip and the second welding strip, and the insulating strip comprises a through hole; the bus bar is arranged on the side, away from the back contact battery, of the insulating strip, the bus bar is electrically isolated from the first welding strip through the insulating strip, and the bus bar is electrically connected with the second welding strip through the through hole; wherein the insulating strip is a flexible insulating strip and comprises an open hole part and a non-open hole part, the through hole is located in the open hole part, and the thickness of the open hole part is larger than that of the non-open hole part. According to the flexible insulating strip, the thicker opening part is arranged in the flexible insulating strip, so that a buffering effect is achieved during welding and subsequent lamination, and the risk of subfissure and fragment is reduced.

The invention relates to the technical field of batteries, in particular to a silicon-carbon negative electrode material and a lithium ion secondary battery. The silicon-carbon negative electrode material comprises silicon-carbon particles, the silicon-carbon particles comprise a matrix, and the matrix comprises a porous carbon matrix and silicon particles located in internal holes of the porous carbon matrix; the porous carbon substrate is provided with open pores and closed pores, the open pores contain silicon particles, the closed pores contain an element K, and based on the total mass of the silicon carbon particles, the mass content of the element K is 50 ppm to 1000 ppm; the silicon-carbon particles comprise halogen, and based on the total mass of the silicon-carbon particles, the mass content of the halogen is 50 ppm to 2000 ppm; the silicon carbon particles and deionized water are mixed according to the mass ratio of 1: 10 to obtain an aqueous solution, the pH value of the aqueous solution at 25 DEG C is pH 1, and the pH 1 is 6-8. Comprising the silicon-carbon negative electrode material disclosed by the invention has the advantages that the expansion rate is improved, and the rate capability and the cycle performance are improved.

A protective helmet comprising a helmet shell having at least two layers and the helmet shell having a flexural modulus from 50 MPa to 600 MPa as measured using ASTM D 790 B and a non-foamed specific gravity in the range of 0.916 g / cm3 up to 1.60 g / cm3. More than one helmet shell may be combined to provide greater protection to the wearer. The layers may be constructed of an open cell foam, a waterproof coating layer, a separator layer, a flexible layer, a slightly foamed layer, and a cushion layer. A protective facial barrier may be easily removed with use of a locking mechanism which removably secures the facial barrier to the helmet shell. The helmet shells may also be in parts and hinged so that the parts can separate for easy removal of the protective helmet. An adjustment locking mechanism may also tighten and adjust a second helmet shell.

The present application relates to a kind of composite current collector and its preparation method, belong to secondary battery technical field.The composite current collector provided by the present application has the original structure of sharp cone for shape memory polymer support layer, and the opening of support layer is filled with foaming agent and foaming aid.A kind of composite current collector provided by the present application can reduce weight and improve the energy density of battery.Secondly, the composite current collector provided by the present application increases the heat-sensitive function, which can cut off the electrochemical reaction inside the secondary battery on one hand after the thermal runaway and external impact of battery, and can reduce the heat generation of secondary battery on the other hand when the secondary battery is at high temperature, which has a triple guarantee for the safety performance of battery.

The invention provides a porous carbon material, a negative electrode material, a manufacturing method of the negative electrode material, a negative electrode, a battery and equipment, the porous carbon material is provided with a plurality of open pores, the open pores are used for loading a silicon material, the plurality of open pores are uniformly distributed in the porous carbon material, and the open pores comprise micropores and mesopores; wherein the mesopores comprise at least one aperture range, and the range of each aperture range is less than or equal to 1nm. The open pores in the porous carbon material are uniformly distributed, the open pores comprise micropores and mesopores with small pore diameter range, and the mesopores can increase the pore volume of the porous carbon material, so that the negative electrode material formed by the open pore loaded silicon material in the porous carbon material has high specific capacity. In addition, a plurality of pores which are formed by the plurality of open pores and are used as reserved spaces for volume expansion of the silicon material are also uniformly distributed in the negative electrode material, and the pore diameter range of the plurality of pores is relatively small, so that the situation that the negative electrode material is broken due to concentrated stress can be avoided, and the structural stability of the negative electrode material is ensured.

The utility model relates to a display panel and a display device. The display panel comprises a display area and a non-display area. The non-display area comprises an open hole and a partition area, the partition area is located between the open hole and the display area, and the partition area surrounds at least part of the open hole. The display panel comprises a substrate layer, a planarization layer is arranged on the substrate layer in the display area, the planarization layer is provided with a first partition structure on the substrate layer in the partition area, and the first partition structure comprises a main top surface, a main bottom surface and a main side surface connected between the main top surface and the main bottom surface, the main top surface and the main bottom surface are opposite in the direction perpendicular to the plane where the display panel is located. The partition area further comprises a reinforcing structure, and the reinforcing structure makes contact with at least part of the side face of the first partition structure and makes contact with the substrate layer. According to the display panel, the reinforcing structures are arranged in the partition areas, and the first partition structures in the partition areas are optimized, so that the binding force of the film layers in the partition areas of the display panel is improved, the stripping problem between the film layers is reduced, and then the stability and reliability of the display surface are effectively improved.

The invention relates to the technical field of vacuum heat insulation materials, and discloses a pored polyurethane vacuum heat insulation panel and a preparation method thereof.The pored polyurethane vacuum heat insulation panel comprises a blocking layer and a core material, the blocking layer is arranged outside the vacuum heat insulation panel and sequentially comprises a protection layer, a cellulose base layer and a heat sealing layer from outside to inside, and the core material is arranged inside the vacuum heat insulation panel and located in the blocking layer; the core material takes open-cell polyurethane foam as a matrix, a nano-scale flame retardant and reinforced fibers are added to form a micropore open-cell structure, the protective layer is used for providing mechanical strength and puncture resistance, the cellulose base layer is used for blocking gas permeation, and the heat sealing layer is used for ensuring sealing performance. The perforated polyurethane vacuum insulation panel is stable in performance, good in heat insulation performance, low in gas permeability, low in water absorption performance and good in mechanical strength and durability, the service life of the vacuum insulation panel is prolonged through combination of the blocking layer and the core material, and the maintenance cost is reduced.

Child safety seat (1) for a vehicle (30) comprising a frame (2) shaped so as to accommodate a child (40) in a child area (3), the frame (2) comprising a sitting portion (2A), a backrest portion (2B) and side portions (2C); at least one impact absorbing assembly (4) connected to the frame (2) and comprising: a deformable polymeric layer (5); at least one honeycomb cellular insert (6) associated with the deformable polymeric layer (5). The at least one honeycomb cellular insert (6) comprises a plurality of open cells (7) having longitudinal axes (L) extending out of an inner / outer surface of the frame (2), said cells (7) being configured to absorb energy by plastic deformation in response to a longitudinal compressive load applied to said cells (7); and the deformable polymeric layer (5) is shaped so as to contain the at least one honeycomb cellular insert (6).

Covered stents may be coated with or otherwise include a drug eluting composition. An illustrative stent may comprise an elongated tubular body having a strut framework defining a plurality of open cells. A polymeric coating may be disposed on a surface of the elongated tubular body and extending across the plurality of open cells and a first drug coating composition disposed on a surface of the polymeric coating.

The invention relates to a copper block centering control method and a copper block embedded circuit board. The method comprises the following steps: S1, manufacturing an inner-layer core board; s2, groove hole processing: milling a groove hole in a copper block embedding area of each layer of core plate, wherein the opening size of the groove hole is greater than the boundary dimension of the copper block; flatness identification blocks are symmetrically arranged on the two opposite sides of the slotted hole in the core plate located on the outermost layer; s3, pre-stacking and positioning the core board; s4, embedding and curing of a copper block: embedding the copper block into the aligned slotted holes, enabling the copper block to be located between the two flatness identification blocks, and then performing curing; and S5, press-fit forming. The flatness identification blocks are arranged on the two opposite sides of the groove hole of the core plate on the outermost layer, it is ensured that the copper block is placed in the middle, and an operator can visually judge whether the copper block has obvious displacement or not by observing whether the flatness identification blocks on the two sides are damaged or not, so that defective products can be checked in time.

This provides an improved dissolvable solid article with a specific aspect ratio. Such dissolvable solid article has a multilayer structure comprising two or more flexible, dissolvable, porous sheets, while each of which comprises a water-soluble polymer and a surfactant and is characterized by a Percent Open Cell Content of from 80% to 100% and an Overall Average Pore Size of from 100 μm to 2000 μm. The multilayer dissolvable solid article is characterized by a maximum dimension D and a minimum dimension z; and wherein the ratio of D / z ranges from 1 to 10.

The invention relates to the technical field of battery packs, and discloses a battery pack and a power utilization device, and the battery pack comprises a box body, a plurality of battery monomers and a supporting piece; the box body comprises a bottom plate, a frame and a cover plate which are fixedly connected, and the box body is provided with an accommodating cavity; the bottom plate is provided with a first flow channel extending in the first direction, and the cover plate is provided with a second flow channel. The plurality of single batteries are arranged in the accommodating cavity, and gaps are formed between the adjacent single batteries in the first direction; a plurality of first holes are formed in the bottom plate; in the first direction, the opening areas of the first holes are gradually increased and / or the opening number is gradually increased; the supporting piece is arranged in the gap, the orthographic projection of the supporting piece on the bottom plate in the third direction shields part of the gap, the supporting piece divides the gap into a third flow channel, and the third flow channel communicates with the first flow channel, the first hole and the second flow channel. Through the gradual change design of the opening area and / or the opening number of the first holes, the flow velocity of the cooling medium in different areas of the accommodating cavity is more uniform, and the liquid cooling flow uniformity and the overall heat dissipation effect are ensured.

The invention relates to the technical field of sodium ion battery negative electrode materials, in particular to a phenolic resin-based hard carbon sodium ion battery negative electrode material, a negative electrode and a preparation method and application thereof. The crosslinking degree and the main chain rigidity of the phenolic resin are regulated and controlled by regulating the number of benzene rings in side chains of aldehyde molecules, so that the internal space (free volume) of the phenolic resin is influenced, and a rich closed-pore structure is finally formed; then waste gas generated by pyrolysis of phenolic resin is used as a carbon source for chemical vapor deposition, and resin carbon is used as a substrate, so that the pore surface of hard carbon can be effectively sealed, electrolyte permeation is prevented, and open pores in the hard carbon material are converted into closed pore structures to be used as efficient sodium storage sites. Meanwhile, the method also has green sustainability and cycle economy, volatile waste gas generated by pyrolysis is reutilized as a carbon source to be deposited on the surface of resin carbon, the carbon yield is improved, the dynamic performance of the hard carbon material is also improved, and emission of the volatile waste gas is reduced.

The utility model relates to the technical field of trepanning, in particular to a membrane material trepanning device. The device comprises a base. And the pressing assembly is arranged on the base and is used for clamping the membrane material and helping the membrane material to move. And the trepanning assembly is arranged on the base and is used for trepanning the membrane material. The punching assembly comprises a plurality of punching piles; the driving part is arranged on the base and drives the punching piles to press downwards for punching; the distance changing piece is arranged on the driving piece and used for changing the distance between the punching piles; and the number adjusting part is in sliding connection with the variable-pitch part and the punching piles and adjusts the number of the punching piles participating in punching by enabling the punching piles to stretch out and draw back. According to the punching device, the corresponding sliding plate on the punching pile which is not used is pushed into the sleeve frame, the spring is compressed, then the punching pile is lifted upwards, the spring is reset to eject the sliding plate, and the sliding column is limited. And the number of the punching piles participating in punching can be adjusted, so that the membrane material punching device can adapt to various punching requirements of different numbers, and the application range is widened.

The present invention relates to dimensionally stable open-cell, fine-cell rigid polyurethane foams, methods for their production and their use.

The present invention discloses a rail transit sound barrier based on phononic crystal cells, which is divided into several cells of equal volume by dividing modules; a resonance cavity with an opening on one side is embedded in each cell; one side of the opening of the resonance cavity faces the sound source; the opening extends outward in a trumpet shape to increase the sound receiving area; several phononic crystal cells that do not contact each other are fixedly arranged in the resonance cavity; the resonance cavity in the present invention can achieve triple acoustic performance improvements, namely sound insulation, sound elimination and sound absorption: its overall appearance belongs to a Holmhelix resonance cavity, which is itself a good sound elimination device, which is the first sound elimination; the trumpet-like opening structure on the sound source side is conducive to the introduction of sound waves, and the phononic crystal cells are arranged inside, which is the second sound insulation of the device; the tail adopts a boss with the same size as the end of the trumpet mouth, which is conducive to the flow of sound waves, and a certain thickness of sound-absorbing rock wool is used on the inner wall of the tail, which is the third sound absorption.

The invention relates to the technical field of batteries, in particular to a negative active material, a negative plate comprising the negative active material and a battery. The negative electrode active material comprises silicon-carbon composite particles, the silicon-carbon composite particles comprise closed pores and open pores, the open pores comprise first open pores and second open pores, the pore diameter of the first open pores is d1, the pore diameter of the second open pores is d2, d1 is greater than or equal to 0.26 nm and less than 0.365 nm, and d2 is greater than or equal to 0.365 nm; the total volume of the first open pores is 0.001 cm < 3 > / g to 0.15 cm < 3 > / g; the total volume of the second open pores is 0.0001 cm < 3 > / g to 0.05 cm < 3 > / g; and the total volume of the closed pores is 0.001 cm < 3 > / g to 0.35 cm < 3 > / g. The negative electrode active material disclosed by the invention has relatively high ionic conductivity and electronic conductivity and relatively high structural stability while relatively high gram volume is ensured. Comprising the negative electrode active material disclosed by the invention can give consideration to relatively good rate capability, conductivity and cycling stability.

The utility model belongs to the technical field of house building construction, and particularly relates to a portable house building construction lighting device which comprises a movable construction lighting vehicle body. An illuminating lamp is arranged on the side wall of the movable construction illuminating vehicle body; the side wall of the movable construction lighting vehicle body is rotationally connected with a stand column. The end of the stand column is fixedly connected with a first telescopic rod. When the illuminating lamp needs to illuminate, the stand column is lifted, the fixing block and the mounting block coincide, the stand column can be automatically reset and abut against the side wall of the mounting block through elasticity of an elastic piece, and the stand column is fixed; the illuminating lamp is placed in the outer shell while stretching out and drawing back, the effect that the illuminating lamp is convenient to collect after being used can be achieved, the portability of the illuminating lamp after being used is improved, meanwhile, the effect of adjusting the illuminating height of the illuminating lamp can be achieved through the first telescopic rod, and the practicability of the illuminating lamp is improved.

The embodiment of the invention provides a camera module and electronic equipment. The camera module comprises a module cover plate, a cover plate bracket, a camera device and a driving device, the module cover plate is connected with the cover plate support, the module cover plate is arranged on the light incident side of the camera device, and the module cover plate is used for being accommodated in an opening of the electronic equipment; the driving device comprises a first matching part; the cover plate bracket comprises a second matching part; one of the first matching part and the second matching part is a pin, the other of the first matching part and the second matching part is a groove, the groove extends in the direction surrounding the optical axis, the distances from the two opposite ends in the extending direction of the groove to the module cover plate are different, and the pin is inserted into the groove and is in sliding connection with the groove; the driving device is used for enabling the first matching part to rotate around the optical axis, enabling the pin to move relative to the groove, and enabling the cover plate support to drive the module cover plate to move in the optical axis direction. According to the embodiment of the invention, the imaging quality and lightening and thinning of the electronic equipment can be considered.

An implant for in-vivo implantation which comprises an assembly of two or more constructive elements (3,4) which are movable relative to each other. Each constructive element (3,4) is partly or completely porous and comprises a porous part (5,6) with a matrix (7,8) of open cells (51,61). A first matrix (7) of the first element (3) comprises a first overlapping part (50) with a form-closed connection to a second overlapping part (60) of a second matrix (8) of the second of the constructive elements (4) through which the first overlapping part extends. The overlapping parts (50,60) are movable relative to each other to change a combined shape of the overlapping parts.

The application provides a composite sensing device, which comprises a support, a control mainboard installed in a first circular groove, a first pressure collecting module installed on a long plate, a second pressure collecting module installed on a short plate, a pressure sensor installed outside the support, a pressure conducting sheet, an upper end of which is installed in a first groove, a middle end of which is attached to the pressure sensor, and a lower end of which is installed in a second groove, an equalizing spring installed in a second circular groove and pressed on the upper end of the pressure conducting sheet, a temperature sensor installed on an opening and attached to an upper end of any one of the moving contact assemblies, an insertion depth detection mechanism installed on the moving contact assemblies, and a power supply mechanism installed between the second circular groove and the base. The application also provides a switch cabinet online monitoring and comprehensive analysis system, which can monitor data in real time and avoid safety hazards.

The application provides a terminal welding clamp and a fixing method of terminals to be welded on a substrate. The terminal welding clamp comprises a bottom plate provided with a bottom plate fixing column; a fixing frame provided with a rectangular cavity, a fixing frame opening and suitable for fixing a DBC; the fixing frame is further provided with a fixing frame fixing hole; a support provided with a first opening penetrating through and capable of accommodating a terminal to be vertically inserted from above and to pass through; a first support table is arranged above the outer periphery of the first opening, and first grooves are arranged on both sides of the inner wall and capable of accommodating the upper end of the terminal to be inserted and clamped; a first insertion hole penetrating through is arranged on the side edge of the support and capable of accommodating the terminal to be vertically inserted from above and to pass through; the support is further provided with a support fixing hole; a fixing block is provided with an opening, and the top end of the terminal can be inserted and clamped in the opening; and the fixing block is further provided with a fixing block fixing column. When the support and the bottom plate are assembled, the terminal does not need to be assembled with the support in advance, the working efficiency is high, and the bottom plate and the support with products do not need to be inclined, and there is no risk of terminal falling.